MA utility's are adopting heat pump rates that reflect that winter-time heat pump use doesn't drive peak demand (which comes in summer). This impressive study from @jpv.switch.box .box makes the case for why this make sense, and why the utility's should do yet more. www.switch.box/mahprates

How many other local and regional solar installers are at risk in the coming years? www.wral.com/story/regula...

Related, on the geoeconomic turn in decarbonization, is @jonasmeckling.bsky.social sky.social in this week's issue of Nature. 🔌💡 "Global competition for the economic benefits of decarbonization has emerged alongside global cooperation on the costs of mitigation." www.nature.com/articles/s41...

"It saves us money, and will continue to save us money,” Steve Fate, president of the West Union District Energy geothermal network in downtown West Union, Iowa, told @mckennapr.bsky.social: insideclimatenews.org/news/2009202... 🔌💡

"The decarbonization agenda is not simply about reordering markets or industrial policies, but in fact represents the crucible for a new geopolitical order.” New axes of power for a new era. Compelling argument from @nilsgilman.bsky.social. 🔌💡

You're working to decarbonize your campus, right? If you want a 6 month opportunity to get smart on decarbonization, the 2026 Campus Decarbonization Academy is worth checking out. www.aashe.org/calendar/cam...

Trump 2.0 + 8 months. The slow down in clean energy manufacturing investments is still growing. We are tracking 50 slowed projects adding up to $51.8B in investment and 50,381 jobs - up from 39 projects, $41.8B, and 42,429 jobs last month. More on what has slowed and advanced below. 🔌💡

Trump’s futile vandalism of U.S. cleantech @opinion.bloomberg.com www.bloomberg.com/opinion/arti...

"The capriciousness of US energy policy under President Donald Trump increasingly looks like a feature rather than a bug.” Great piece from @liamdenning.bsky.social on the massive downturn in clean energy manufacturing investments. #energysky Glad our data at The Big Green Machine was of use!

US International Development Finance in discussions with NY-based Orion Resources Partners to set up $5B fund to support mining investments abroad and ensure supply of cobalt, copper, rare earths and counter China. Orion is eyeing acquisitions in DRC. #energysky www.bloomberg.com/news/article...

In a world riven by inequality and devastated by climate + ecological crisis, what would it take for "green industrial policy" to empower the working class in Global North + South, and be truly green? New @cplusc.bsky.social report by me and Isabel Estevez (1/3) t.co/78sQQe4d1g

It's true #alwaysbecharging 🇨🇳🇨🇳🇨🇳 www.ft.com/content/5f73...

“We thought we’d just be taken somewhere for further questions, but they put on handcuffs and chained our bodies,” Cho recalled. “That’s when we realized, we’re not simply being moved.” "Is this what allies do?" protesters asked. Good WSJ article on ICE raid at Hyundai-LG battery factory in GA.

Where is the post-2022 surge in foreign direct investment in clean energy manufacturing from China going? This new report from @nzpolicylab.bsky.social has answers.

I installed a ground-source heat pump 10 years ago. 41% of the total cost was drilling. This technology, which could lower drilling costs by 80%, would have reduced the total project cost by 33%. Not sure that'll put geo at price parity with a gas furnace, but it is a big step in that direction.

Do you know what's way more expensive than keeping the power on? Paying for thousands of people to rip up their walls and floors after their pipes burst in a cold snap. Just ask Texas.

"We need fundamental solutions to ensure that our companies never again see workers chained up after investing." This is how the arrest of Koreans at the LG construction site in Georgia is playing out in the Korean newsmedia. youtube.com/watch?v=DNdLBA-Z61Y Quote above via cc/auto-translate

In my book, Charged, I describe how incremental improvements since the 1990s made lithium-ion batteries "good enough". CATL's new LFP batteries are better than "good enough" w/ < 10 min. charging and 500 miles of range. As Steve Levine puts it, these batteries are moving in for the kill. 🔌💡

So proud of this collaboration led by @cssn.org 110 top experts from around the world 13 chapters on who is blocking or slowing action on climate change A quantum leap in our understanding of why society has failed to solve this Will be free online Oct 14 1/x global.oup.com/academic/pro...

The clean energy mfg boom has drawn $134 billion in foreign investment to US. 🔌💡 $42 billion of that comes from South Korean-based companies and is projected to create 46,000 jobs for Americans. Trump's raid on the Hyundai-LG plant puts a lot at risk. www.the-big-green-machine.com/foreign-inve...

California quietly guts ambitious virtual power plant bill www.canarymedia.com/articles/vir... via @jeffstjohn.bsky.social

"While researchers expected a decrease, they were not anticipating the size of the reduction." Shutting down a coal processing facility near Pittsburgh resulted in dramatically improved respiratory health. No one realized just how detrimental it was, until it closed.

This is a story I tell in my book Charged: A History of Batteries and Lessons for a Clean Energy Future. The chapter on the rise of EVs follows the parallel rise of Tesla and BYD through the 2010s. While Tesla got all the headlines, BYD was building a juggernaut. www.charged-the-book.com

Report: If the 3.5GW of wind energy projects contracted offshore New England had been operational last winter, it could have offset the surge in natural gas prices that season and saved ratepayers $400m on their energy bills: www.utilitydive.com/news/offshor... via @dianadigangi.bsky.social 🔌💡

Scoop: The Trump administration appears to be considering a move to label wind farms as intentionally harming migratory birds, a classification that would in the eyes of some legal experts label *any* project illegal. It would definitely be fought in court if pursued. @heatmap.news

Gasoline is the stealth "bill you pay without a bill." In 2024, it was the largest slice of "energy wallet" spending in most states. Electrification can shrink the whole wallet.

Here's the reports that anti-wind folks don't want you to read. It would be a shame if lots of people read them and reposted them.

My lab's been attacked by an anti-wind group and their lawyers. They threatened the science funding of my whole university, to shut me and my undergraduate research assistants up. NYT just covered it. 1/n www.nytimes.com/2025/08/25/c...

How big is the slow down in US clean energy manufacturing investments? Huge. 🔌💡 We are now tracking 39 projects, $41.8B in investment and 42,429 jobs that have slowed since Trump took office. That compares to 70 projects, totaling $31.9B, and 36,554 jobs that have advanced during the same time.

Today marks day 1 of public hearings on the EPA’s reconsideration of the endangerment finding, a 2009 declaration that greenhouse gases threaten public health. Follow along with us👇🧵

DOJ sues California to end enforcement of emissions standards for trucks www.cnbc.com/2025/08/15/d... 🔌💡 🔌🚗

“Smothering the E.V. industry might have been merely a regrettable mistake for a Republican to make 10 years ago. Today, it is economic idiocy.” Great piece from Robinson Meyer on what is at stake with energy policy in @nytimes.com www.nytimes.com/2025/08/10/o...

These reports are "congressionally mandated...authored by hundreds of scientists and experts...take years to research,... go through multiple rounds of peer review. An independent National Academy of Sciences panel signs off on the content." vs. I called 5 scientists who downplay climate risks.

Remember all of those new clean energy investments under Biden? “President Donald Trump has turned that wave into a ripple.” Great story from @canarymedia.com

This year's @irena-official.bsky.social cost report is missing my favourite figure on LCOE, so I replicated it with their data + Lazard for NGCC 👇 Please @irena-official.bsky.social add it again next year! #EnergySky

David Ferris at @eenews.bsky.social covered our 6-month update on US clean energy manufacturing investments since Trump took office. Key points: A lot is slowing down, but not everything, and disadvantaged communities are getting hit hardest. #energysky www.politico.com/newsletters/...

Glad to have had the chance to talk with @robinsonmeyer.bsky.social at @heatmap.news about the trends we are seeing in US clean energy investment since Trump office. Read his article below. For more, check out our Trump + 6 month tracker and report at www.the-big-green-machine.com

How big is the slow down in US clean energy manufacturing investments? We are tracking 34 projects, $31.3B in investment and 27,949 jobs that have slowed since Trump took office. Key points from our 6-month report below highlight some surprising trends in what is advancing v slowing. 🧪🔌💡☀️💨🔋

Contender for best podcast episode of the year is out today, with Jane Flegal & @jessedjenkins.com talking about climate and energy policy with Ezra Klein. Get up to speed with where we are and what is next for decarbonization. 🔌💡 Gift link: www.nytimes.com/2025/07/25/o...

"Next time someone says, 'Germany installed a lot of wind and solar and it’s electricity prices skyrocketed,' you can let them know that was a consequence of increases in the price of natural gas." — from @andrewdessler.com's post on The Climate Brink.

First highway median solar project proposed in Massachusetts! 5 MW over 2 miles, but there are 400 total miles in MA alone viable for development. Let's make it happen! #EnergySky 🔌💡 lexobserver.org/2025/07/11/g...

If you are in Massachusetts and have a heat pump or are interested in how rate design can encourage decarbonization, this webinar will be of interest! Mass. DPU is reviewing a "heat-pump-friendly" rate that would save heat pump homes hundreds of $ in winter-time electricity costs. #energysky

Great thread and resources from @alexrbarron.bsky.social that make the case for why carbon pricing should be integrated into institutional decision making in higher ed. #energysky

The news last week out of Congress is substantial for renewable energy, but so is what's happening on the local level. According to @heatmap.news, 1 in 5 US counties now have restrictive wind and/or solar ordinances, a worrisome trend that keeps growing. #EnergySky 💡🔌 heatmap.news/politics/law...

Great review in @nybooks.com from outstanding environmental journalist and thinker @nijhuism.bsky.social on my Wellesley colleague @ehatmat.bsky.social's most recent book, What to Save and Why + related books by @wbarlowrobles.bsky.social and Katherine Rundell. #philsky

The One Big "Beautiful" Bill will increase energy costs for American households and businesses, increase taxes on new electricity supplies at a time of rapid demand growth, and substantially increase U.S. greenhouse gas emissions. That sounds like a big bad bill to me... #OBBB 🔌💡

Grateful to all the Congressional Staff who worked tirelessly to try to make this bill at least a little less bad. Your work mattered. The road ahead is long. The only way through is together.

I'm a fan of @heatmap.news's Shift Key. I'm especially excited about this new episode, which is a crash course on basic energy concepts. It seems like the next best thing to actually getting to sit in on @jessedjenkins.com's intro class at Princeton. 🔌💡 heatmap.news/podcast/shif...

China is quickly becoming the world's first electro-state, while the US, under Republican rule, has decides to cede the future and double down on its role as a petro-state.

There's something darkly amusing about the fact that, in a political atmosphere rife with paranoid xenophobia about China, the GOP is passing a big high-profile bill that amounts to *total surrender to China*.